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Finding the Fourth Proportional to 59,938.60, 89,879.16 and 28,322.34

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Solution

The fourth proportional to 59,938.60, 89,879.16 and 28,322.34 is: 42,469.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,938.60 : 89,879.16 = 28,322.34 : x
  2. Step 2: Convert to fraction form
    59,938.60/89,879.16 = 28,322.34/x
  3. Step 3: Cross multiply
    59,938.60x = 89,879.16 × 28,322.34
  4. Step 4: Simplify right side
    59,938.60x = 2,545,588,128.43
  5. Step 5: Solve for x
    x = 2,545,588,128.43/59,938.60
  6. Step 6: Final answer
    x = 42,469.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.